Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?

It is elastomeric and should work well for that I would think. I used it to seal the roof seams on a 2015 GMC pickup and it worked great. Keep in mind it is self leveling so it spreads out a bit on its own.

Would this work for adhering rubber matting to a wooden and aluminum boat deck?

yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first!

can i use this to attach solar panels to camper roof? pnls weigh 24pnds.

I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels

Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.

I believe so, we use it on the seams of our water slide that's underwater at all times.

Desertcart Logo

Deliver to Vietnam

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

⚓ Seal your marine projects with confidence—where durability meets precision!

CUSTOM FINISH READY - Sands repeatedly without losing stability—paint over after just 4 hours.
DURABILITY THAT LASTS - Non-corrosive, vibration-resistant seal perfect for harsh marine environments.
EFFORTLESS APPLICATION - One-part polyurethane paste fits all piston guns for quick, mess-free use.
UNMATCHED MARINE BONDING - Adheres flawlessly to wood, fiberglass, metal & more—above or below waterline.
CHEMICAL WATER RESILIENCE - Resists dilute acids, fuels, oils, and both fresh and saltwater exposure.

Sika Sikaflex 291 Lot Slow Cure White is a premium 1-part polyurethane marine sealant designed for superior adhesion to common marine materials. It offers exceptional resistance to fresh and saltwater, chemicals, and vibration, curing slowly for a professional finish that can be sanded and painted. Ideal for above and below waterline applications, it ensures long-lasting, durable seals in demanding marine environments.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.